Sure, shopping is super fun, but the struggle is all too real when it comes to finding just the right size for you at different stores. Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Paramount Pictures / Via giphy.com It's enough to make you feel a little crazy sometimes. But rest assured: It's not you, it's them. Watch Chrissy try size 12 clothes in 4 different stores! View this video on YouTube As/Is / Via youtu.be This is Chrissy, and she's a size 12. But, most of the time, she has trouble finding stuff that's just right in that size. BuzzFeed The clothing that fits her on any given day can range between a size extra small to a size 14. How is that possible? So, she decided to conduct a little experiment and try on size 12 shirts, pants, and jackets at four different stores to see how they measured up...literally. BuzzFeed She hit up Forever 21, H&M, Old Navy, and TopShop. The first thing Chrissy learned was that there was no size 12 at Forever 21. But the equivalent in dress size was a medium. BuzzFeed "I could've easily gone to a large, and it would've fit way better." Chrissy was also told she would be a size 27/28 in pants, but...nope. BuzzFeed Basically, all of the jeans she tried on that were supposed to fit a size 12 were way too small. The shirts Chrissy tried on fit okay, but they were still a bit too small for her taste. BuzzFeed "I think the biggest lesson I learned at this Forever 21 experience was that not only do I feel like I don't know what size I am, neither do the sales associates." Next up was Old Navy, where Chrissy was told a size 12 was a "small" in a dress. BuzzFeed With the pants, she found that they were all consistently about two to three sizes too big. BuzzFeed She would get that back gap over her butt. And when it came to shirts, a sales associate told Chrissy a size 12 was a medium. See how this can get confusing AF? BuzzFeed Although the shirts fit well, Chrissy did get that infamous boob gap so many girls have to deal with while wearing button-up shirts. Then she went to H&M, where she immediately noticed that all the sizes were clearly marked, so she never had to ask for help. BuzzFeed That was a plus. But then when she tried a couple of size 12 dresses on, it got super confusing because one of them fit just right... BuzzFeed But the other one didn't even cover half of Chrissy's body. BuzzFeed "Somehow, between that dress and the pink dress, it's, like, worlds apart." And when it came time to try on the pants, Chrissy thought the size 12 at H&M fit really small and tight around the thighs. BuzzFeed The denim fit okay, but she tried on a pair of leather pants that only went up to her crotch. And the last store Chrissy went to was TopShop, which she thought was the one that actually got her size the most. BuzzFeed "This is the first size 12 that is actually me in every way." No, seriously. She absolutely loved the way the dresses fit on her. They were absolutely perfect. Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF BuzzFeed Her mind was blown that everything fit so well. Even the jeans fit perfectly, which is almost unheard of the first time around. BuzzFeed Chrissy was very impressed that the sizes were consistent, even within the store. "I just wish that's how easy it was at every store." Once Chrissy was done shopping, she wanted some answers. So she asked Jessica Murphy, a size fit expert and cofounder of True Fit. BuzzFeed She explained that brands cater their sizes to who their core audience is, so sizing is not at all consistent across the board. They did a study using 10,000 jeans of the same size and same relative style, and found there was about a five-inch difference among the jeans. BuzzFeed That's a lot. Jessica recommends you get familiar with the styles that work well with your body shape. BuzzFeed Basically, it should be a lot less about the size, and a lot more about how the clothing fits and how you feel wearing it. And just like that, Chrissy proved that sizes don't mean a thing. BuzzFeed She said, "Buy what fits you. Do not worry about the number because I have proof that they don't mean anything."